OTHER INVESTMENTS, NET (Details) (USD $)	Mar. 31, 2013	Jun. 30, 2012
Other investments, net	$ 15,396,000	$ 15,661,000
Preferred Stock - Comstock At Cost [Member]
Other investments, net	13,231,000	13,231,000
Private Equity Hedge Fund At Cost [Member]
Other investments, net	1,879,000	1,879,000
Corporate Debt And Equity Instruments At Cost [Member]
Other investments, net	269,000	269,000
Warrant [Member]
Other investments, net	$ 17,000	$ 282,000